Simplex - Cycloid men's bike - circa 1950s - Catawiki
STEEL FRAMESET SIMPLEX TOUR DE FRANCE FRAME EROICA LUGS ROAD BIKE FRAME VINTAGE | eBay
New e-bike, made by Dutch industrial cooperation (Philips patents, Simplex bike industry). Made at the Simplex Factory, Overtoom, Amsterdam. 3 June 1932 Cycling. The latest in the Dutch bicycle industry is the